Determining optimal space and depth of the subsurface plastic drainage tubes is a main task in planning and design of a drainage system. 农田塑料暗管埋深和间距的确定,是塑料暗管排水系统规划设计的主要任务,关系到排水效果和投资效益。
It is concluded that the average degree of radial consolidation for a given soil layer increases with its buried depth since the geostatic pressure increases with the lattar. 结果表明,因自重应力随深度增加,土层径向排水平均固结度随其埋深而增大。